Manufacturer... Yamaha Type... New car catalog (published in 1978, A4 size, 20 pages) Models... XS750 Special, XS650 Special, SR500, SR400, GX400, GX250 Other: A comprehensive catalog of distinctive road models before the introduction of four-cylinder models. Although it's a catalog from about 50 years ago, it's a thick 20-page volume in good condition with no noticeable scratches or stains.